importjava.awt.event.*;
importjava.awt.*;
public class JRadioButtonDemo extends JFrame
{
	publicJRadioButtonDemo() 
	{
		JRadioButtonjcb = new JRadioButton("A");	//creating JRadioButton.  
		add(jcb);					//adding JRadioButton to frame. 
		jcb = new JRadioButton("B");			//creating JRadioButton. 
		add(jcb);					//adding JRadioButton to frame. 
		jcb = new JRadioButton("C");			//creating JRadioButton.  
		add(jcb);					//adding JRadioButton to frame. 
		jcb = new JRadioButton("none");
		add(jcb);
		setLayout(new FlowLayout());
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setSize(300, 300);
		setVisible(true);
	}
	public static void main(String[] args)
	{
		newJRadioButtonDemo();
	}
}